High-precision repeated positioning multifunctional numerical control machine tool combined clamp
By designing a multi-functional CNC machine tool combination fixture with high precision repeat positioning, the problems of low positioning accuracy and single function in the existing technology are solved, and more efficient and flexible material processing capabilities are achieved.
Patent Information
- Application Number
- CN202421293512.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The repeat positioning accuracy of existing CNC machine tool fixtures is not high and have a single function, so they cannot meet the processing needs of multiple types of materials.
A high-precision repeat positioning multi-function CNC machine tool combination fixture is designed, including a fixture base, a removable material tray fixture, a coarse positioning mechanism and a fine positioning mechanism. The fixture base is semicircular, with limiting grooves and limiting ears, and coarse positioning is achieved through taper screws. The outer contour of the material tray fixture is adapted to the shape of the inner side of the fixture base to achieve fine positioning.
It improves the repeat positioning accuracy and scene adaptability of the fixture, and can replace and position different types of materials faster and more accurately, improving processing efficiency.
Smart Images
Figure CN222520574U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of numerical control machine tools and industrial automation, in particular to a high-precision repeated positioning multifunctional numerical control machine tool combined fixture. Background Art
[0002] CNC machine tools are short for Computer numerical control machine tools, which are automated machine tools equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing.
[0003] A fixture is a device used to fix the object to be processed during the mechanical manufacturing process so that it occupies the correct position for construction or inspection.
[0004] At present, the fixtures used in CNC machine tools can usually only install blanks of materials of specific shapes, and their functions are single and can only clamp one type of product blank.
[0005] There are also some combined clamps, but their repeat positioning accuracy is poor, and the repeat positioning error of each disassembly and installation is large. Utility Model Content
[0006] The main purpose of the utility model is to provide a high-precision repeated positioning multifunctional CNC machine tool combined fixture, aiming at improving the repeated positioning accuracy of the fixture.
[0007] To achieve the above-mentioned purpose, the utility model provides a high-precision repeatable positioning multifunctional CNC machine tool combination fixture, including: a fixture base, a material tray fixture detachably arranged on the fixture base, the fixture base is provided with a coarse positioning mechanism and a fine positioning mechanism, the coarse positioning mechanism is used for coarse positioning of the material tray fixture, and the fine positioning mechanism is used for fine positioning of the material tray fixture.
[0008] A further technical solution of the utility model is that the clamp base is semicircular, and a plurality of tray clamp limiting grooves are arranged at intervals along the circumferential direction on the top of the clamp base. The tray clamp is provided with limiting ears corresponding to the limiting grooves, and the limiting ears are detachably arranged in the limiting grooves by tapered screws to roughly position the tray clamp.
[0009] A further technical solution of the utility model is that the nut of the tapered screw has a tapered surface, the limiting ear is provided with a screw hole for the tapered screw to pass through, and the top of the screw hole is provided with a tapered surface corresponding to the tapered screw.
[0010] A further technical solution of the utility model is that the screw hole is a waist-shaped adjustment hole, and the outer side of the screw hole is open.
[0011] A further technical solution of the utility model is that the outer contour of the material tray clamp is matched with the inner side shape of the clamp base to achieve precise positioning of the material tray clamp.
[0012] A further technical solution of the utility model is that the inner side wall of the clamp base is sunken to form a two-level step structure, and the bottom of the material tray is provided with a slot matched with the step structure.
[0013] A further technical solution of the utility model is that the tray clamp comprises a semicircular tray and a semicircular tray pressing plate, the limiting ears are arranged on the semicircular tray, and the semicircular tray pressing plate is pressed on the semicircular tray by screws.
[0014] A further technical solution of the utility model is that the material tray clamp comprises a semicircular round material semi-fixed attachment and a secondary clamp pressure plate, the outer contour of the semicircular round material semi-fixed attachment is provided with a toothed structure, the limiting ear is provided on the secondary clamp pressure plate, and the secondary clamp pressure plate presses the semicircular round material semi-fixed attachment onto the clamp base.
[0015] A further technical solution of the utility model is that the material tray fixture comprises a semicircular mixing material tray, the limiting ears are arranged on the semicircular mixing material tray, and a plurality of materials are arranged on the straight edge of the semicircular mixing material tray.
[0016] A further technical solution of the utility model is that the material tray clamp comprises a circular material tray and a circular material tray pressing plate, the circular material tray is provided with the limiting ears, and the circular material tray pressing plate is fixed to the circular material tray by screws.
[0017] The beneficial effects of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model are:
[0018] The utility model adopts the above technical scheme, including: a clamp base, a material tray clamp detachably arranged on the clamp base, the clamp base is provided with a coarse positioning mechanism and a fine positioning mechanism, the coarse positioning mechanism is used to perform coarse positioning of the material tray clamp, and the fine positioning mechanism is used to perform fine positioning of the material tray clamp, so as to facilitate the replacement of the material tray, and through the coarse positioning and fine positioning, the positioning accuracy and scene adaptability of the material tray are improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0020] Figure 1 It is a structural schematic diagram of a fixture base in a high-precision, repeatable positioning, multifunctional CNC machine tool combined fixture of the utility model;
[0021] Figure 2 It is a schematic diagram of the structure of a tapered screw;
[0022] Figure 3 It is a structural schematic diagram of the first implementation scheme of the utility model high-precision repeated positioning multifunctional CNC machine tool combined fixture;
[0023] Figure 4 It is a schematic diagram of the exploded structure of the first implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model;
[0024] Figure 5 It is a structural schematic diagram of a semicircular material tray in the first implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model;
[0025] Figure 6 yes Figure 5 The enlarged schematic diagram of the middle A part;
[0026] Figure 7 It is a structural schematic diagram of the second implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model;
[0027] Figure 8 It is a schematic diagram of the exploded structure of the second implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model;
[0028] Fig. 9 It is a structural schematic diagram of a semi-circular round material semi-fixed attachment in the second implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model;
[0029] Fig.10 It is a structural schematic diagram of the third implementation scheme of the utility model high-precision repeated positioning multifunctional CNC machine tool combined fixture;
[0030] Fig.11 It is a schematic diagram of the exploded structure of the third implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model;
[0031] Fig.12 It is a schematic diagram of the overall structure of the fourth implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model;
[0032] Fig.13 It is a schematic diagram of the exploded structure of the fourth implementation scheme of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model.
[0033] Description of Figure Numbers:
[0034] Clamp base 1; tray clamp 2; limiting groove 3; limiting ear 4; tapered screw 5; tapered surface 6; tapered surface 7; adjustment hole 8; outer contour 9; inner side surface 10; step structure 11; semicircular tray 12; semicircular tray pressure plate 13; screw 14; semicircular round material semi-fixed attachment 15; secondary clamp pressure plate 16; tooth structure 17; semicircular mixing tray 18; round tray 19; round tray pressure plate 20; screw 21.
[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0037] Please refer to the figure Figures 1 to 13 The utility model proposes a high-precision repeated positioning multifunctional CNC machine tool combination fixture. The preferred embodiment of the high-precision repeated positioning multifunctional CNC machine tool combination fixture of the utility model includes a fixture base 1 and a material tray fixture 2. The material tray fixture 2 can be detachably arranged on the fixture base 1.
[0038] The fixture base 1 is provided with a coarse positioning mechanism and a fine positioning mechanism. The coarse positioning mechanism is used to perform coarse positioning on the tray fixture 2 , and the fine positioning mechanism is used to perform fine positioning on the tray fixture 2 .
[0039] Specifically, in this embodiment, the clamp base 1 is semicircular, and a plurality of tray clamp 2 limiting grooves 3 are arranged at intervals along the circumferential direction on the top of the clamp base 1. The tray clamp 2 is provided with limiting ears 4 corresponding to the limiting grooves 3. The limiting ears 4 are detachably arranged in the limiting grooves 3 by tapered screws 5 to roughly position the tray.
[0040] The nut of the tapered screw 5 has a tapered surface 6 , and the limiting ear 4 is provided with a screw hole for the tapered screw 5 to pass through, and the top of the screw hole is provided with a tapered surface 7 corresponding to the tapered screw 5 .
[0041] Specifically, as an implementation scheme, in this embodiment, the tray fixture 2 and the fixture base 1 are roughly positioned by installing three tapered screws 5, and the tapered surface 6 of the tapered screws 5 and the tapered surface 7 of the tray.
[0042] The screw hole is a waist-shaped adjustment hole 8, and the outer side of the screw hole is open. In this embodiment, by setting the screw hole as a waist-shaped adjustment hole 8 and opening the outer side of the screw hole, it is easier to adjust the position of the material tray and achieve rough positioning.
[0043] Furthermore, in this embodiment, the outer contour 9 of the tray fixture 2 is matched with the shape of the inner side surface 10 of the fixture base 1 to achieve precise positioning of the fixture tray.
[0044] The inner side wall of the clamp base 1 is sunken to form a two-stage step structure 11, and the bottom of the tray clamp 2 is provided with a slot that matches the step structure 11. In this embodiment, the inner side wall of the clamp base 1 is sunken to form a two-stage step structure 11, and a slot that matches the step structure 11 is provided at the bottom of the tray clamp 2, so that the assembly stability of the clamp can be improved.
[0045] When the present embodiment is in use, one device only needs one fixture base 1, but a plurality of different material trays can be configured according to production and processing requirements for processing different types of materials.
[0046] During assembly, the processing material is first fixed to the tray fixture 2, and then the tray fixture 2 is fixed to the fixture base 1. The tray fixture 2 and the fixture base 1 are roughly positioned by installing three dimensional screws, and the dimensional surfaces of the dimensional screws and the dimensional surfaces of the tray fixture 2 are roughly positioned, and then the outer contour 9 of the tray fixture 2 and the inner surface 10 of the fixture base 1 are used to achieve high-precision fine positioning.
[0047] The material tray in this embodiment can be designed according to different types of processing materials.
[0048] Please refer to Figures 3 to 6 As a first implementation scheme, in this embodiment, the tray fixture 2 is semicircular, and the tray fixture 2 includes a semicircular tray 12 and a semicircular tray pressing plate 13. The semicircular tray 12 is provided with the limiting ear 4, and the semicircular tray pressing plate 13 is pressed on the semicircular tray 12 by screws 14. This implementation scheme can be applied to disc materials.
[0049] Please refer to Figures 7 to 9As a second implementation scheme, in this embodiment, the clamp is a secondary clamp, the material tray clamp 2 is semicircular, and the material tray clamp 2 includes a semicircular round material semi-fixed attachment 15 and a secondary clamp pressing plate 16. The outer contour 9 of the semicircular round material semi-fixed attachment 15 is provided with a tooth structure 17, and the secondary clamp pressing plate 16 is provided with the limiting ear 4. The secondary clamp pressing plate 16 presses the semicircular round material semi-fixed attachment 15 onto the clamp base 1. This implementation scheme can be used for disc materials with secondary plastic frames.
[0050] Please refer to Figure 10 to Figure 11 As a third embodiment, in this embodiment, the material tray fixture 2 includes a semicircular mixing material tray 18, the limiting ear 4 is arranged on the semicircular mixing material tray 18, and a plurality of materials are arranged on the straight edge of the semicircular mixing material tray 18. This embodiment can be applied to block or rod-shaped materials.
[0051] Please refer to Figure 12 to Figure 13 As a fourth implementation scheme, in this embodiment, the tray fixture 2 includes a circular tray 19 and a circular tray pressing plate 20, the circular tray 19 is provided with the limiting ear 4, and the circular tray pressing plate 20 is fixed to the circular tray 19 by screws.
[0052] It should be noted that the above four implementation plans for the shape of the tray fixture 2 are merely examples of the tray. In specific implementation, the shape of the tray can be configured according to production and processing requirements, and the present utility model does not limit this.
[0053] The beneficial effects of the high-precision repeated positioning multifunctional CNC machine tool combined fixture of the utility model are:
[0054] The utility model adopts the above technical scheme, including: a clamp base, a material tray clamp detachably arranged on the clamp base, the clamp base is provided with a coarse positioning mechanism and a fine positioning mechanism, the coarse positioning mechanism is used to perform coarse positioning of the material tray clamp, and the fine positioning mechanism is used to perform fine positioning of the material tray clamp, so as to facilitate the replacement of the material tray, and through the coarse positioning and fine positioning, the positioning accuracy and scene adaptability of the material tray are improved.
[0055] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A high-precision repeated positioning multifunctional CNC machine tool combined fixture, characterized in that: include: A clamp base, a material tray clamp detachably arranged on the clamp base, the clamp base is provided with a coarse positioning mechanism and a fine positioning mechanism, the coarse positioning mechanism is used for coarse positioning of the material tray clamp, and the fine positioning mechanism is used for fine positioning of the material tray clamp.
2. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 1 is characterized in that: The clamp base is semicircular, and a plurality of tray clamp limiting grooves are arranged at intervals along the circumferential direction on the top of the clamp base. The tray clamp is provided with limiting ears corresponding to the limiting grooves. The limiting ears are detachably arranged in the limiting grooves by tapered screws to roughly position the tray clamp.
3. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 2 is characterized in that: The nut of the tapered screw has a tapered surface, the limiting ear is provided with a screw hole for the tapered screw to pass through, and the top of the screw hole is provided with a tapered surface corresponding to the tapered screw.
4. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 3 is characterized in that: The screw hole is a waist-shaped adjustment hole, and the outer side of the screw hole is open.
5. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 2 is characterized in that: The outer contour of the tray clamp is matched with the inner side shape of the clamp base to achieve precise positioning of the tray clamp.
6. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 2 is characterized in that: The inner side wall of the clamp base is sunken to form a two-level step structure, and the bottom of the material tray is provided with a slot adapted to the step structure.
7. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 2 is characterized in that: The tray clamp comprises a semicircular tray and a semicircular tray pressing plate, the limiting ears are arranged on the semicircular tray, and the semicircular tray pressing plate is pressed on the semicircular tray by screws.
8. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 2 is characterized in that: The tray clamp includes a semicircular round material semi-fixed attachment and a secondary clamp pressure plate. The outer contour of the semicircular round material semi-fixed attachment is provided with a toothed structure. The limiting ears are provided on the secondary clamp pressure plate. The secondary clamp pressure plate presses the semicircular round material semi-fixed attachment onto the clamp base.
9. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 2, characterized in that: The material tray fixture comprises a semicircular mixing material tray, the limiting ears are arranged on the semicircular mixing material tray, and a plurality of materials are arranged on the straight edge of the semicircular mixing material tray.
10. The high-precision repeated positioning multifunctional CNC machine tool combined fixture according to claim 2, characterized in that: The tray clamp comprises a circular tray and a circular tray pressing plate. The circular tray is provided with the limiting ears, and the circular tray pressing plate is fixed to the circular tray by screws.